Could it be the tires?
Reading this post it seems there are vastly different opinions as to the crossfires ability in snow.
I love her but she is worthless in snow.
I have ps2 stock and unless i have forward momentum, i can not get up even the slightest incline (my driveway).
Yes, i have been driving ny east coast winters for awhile and know how to drive in them.
I did drive to Boston after a snow storm and once up to speed was ok but lost rubber to road on any patches.